



Polyzoa of Queen Charlotte Islands. 449 



spotted appearance to the front wall ; orifice arched above, 

 with a shallow bluntly pointed sinus below, not contracted at 

 the opening, peristome slightly thickened; on one side, just 

 below the orifice (or occasionally on both sides), a small 

 rounded avicularium on a prominent boss. Ooecium (?). 

 On shell. 



The specimens of this form have unfortunately been mis- 

 laid ; but I hope to be able to give a figure of it in a subsequent 

 portion of the Report. 



Schizoporella Dawsom\ n. sp. 



Zocecia ovate, or hexagonal, quincuncial, depressed or very 

 moderately convex, separated by raised lines, highly calcified, 

 vitreous ; surface retieulato-punctate (punctures appearing as 

 deep shafts in the vitreous crust) ; orifice arched above, much 

 broader than high (narrow between the upper and inferior 

 margins), a shallow rounded sinus in the centre of the lower 

 margin, not contracted at the opening ; peristome not raised, 

 thickened round the sinus. Avicularia none. Ooecium 

 rounded, closely united to the cell above, somewhat depressed 

 in front, glossy, covered with rather large punctures ; a pro- 

 minent thickened border round the opening. 



Virago Sound, on shell. 



Schizotheca, Hincks. 



Schizotheca fissurella* , n. sp. (PI. XVII. fig. 7.) 



Zocecia small, qnincuncially disposed, ovate, the lower 

 portion flatfish, the oral region raised, tubular, suberect ; some- 

 times punctured round the margin, sutures extremely shallow ; 

 surface smooth, porcellaneous, shining ; orifice immersed, 

 arched above, straight below, with a narrow slit-like sinus ; 

 (?) two spines on the upper margin; peristome thickened and 

 elevated round the mouth, so as to form a kind of neck, car- 

 ried out in front into a projection, which is notched in the 

 centre and bimucronate j on each side a sharp spinous process, 

 often wanting. Ooecium rounded, smooth, with a small longi- 

 tudinal fissure above the opening, and a central tooth-like 

 process just within the oral arch. 



Dolomite Narrows ; Cumshewa, &c. ; not uncommon on 



shells and stone. 



This is a very characteristic member of the genus Schizo- 

 t/teca, of which only two species have hitherto been recorded 



* Described as a Schizoporella, ' Annals ' for September 1832, p. 253, 





